iFit/sw_circlesurf

 creates a circle surface in 3 dimensions

 [handle] = SW_CIRCLESURF(r0, n, R, N)

 Input:

 r0    Center of the circle, dimensions are [3 1].
 n     Vector normal to the circle surface, dimensions are [3 1].
 R     Radius of the circle.
 N     Number of points on the curve.

 See also SW_CIRCLE, SW_CONE, SW_CYLINDER, SW_ARROW.